25720002

素因数分解:

$2^1\times 3^2\times 7^2\times {\mathrm{11}}^2\times {\mathrm{241}}^1$

素因数の和:285

約数の個数: 108

約数和(自身を含む): 71549478

約数和(自身を除く): 45829476

約数列:

[1, 2, 3, 6, 7, 9, 11, 14, 18, 21, 22, 33, 42, 49, 63, 66, 77, 98, 99, 121, 126, 147, 154, 198, 231, 241, 242, 294, 363, 441, 462, 482, 539, 693, 723, 726, 847, 882, 1078, 1089, 1386, 1446, 1617, 1687, 1694, 2169, 2178, 2541, 2651, 3234, 3374, 4338, 4851, 5061, 5082, 5302, 5929, 7623, 7953, 9702, 10122, 11809, 11858, 15183, 15246, 15906, 17787, 18557, 23618, 23859, 29161, 30366, 35427, 35574, 37114, 47718, 53361, 55671, 58322, 70854, 87483, 106281, 106722, 111342, 129899, 167013, 174966, 204127, 212562, 259798, 262449, 334026, 389697, 408254, 524898, 612381, 779394, 1169091, 1224762, 1428889, 1837143, 2338182, 2857778, 3674286, 4286667, 8573334, 12860001, 25720002]

約数ペア:

[(1, 25720002), (2, 12860001), (3, 8573334), (6, 4286667), (7, 3674286), (9, 2857778), (11, 2338182), (14, 1837143), (18, 1428889), (21, 1224762), (22, 1169091), (33, 779394), (42, 612381), (49, 524898), (63, 408254), (66, 389697), (77, 334026), (98, 262449), (99, 259798), (121, 212562), (126, 204127), (147, 174966), (154, 167013), (198, 129899), (231, 111342), (241, 106722), (242, 106281), (294, 87483), (363, 70854), (441, 58322), (462, 55671), (482, 53361), (539, 47718), (693, 37114), (723, 35574), (726, 35427), (847, 30366), (882, 29161), (1078, 23859), (1089, 23618), (1386, 18557), (1446, 17787), (1617, 15906), (1687, 15246), (1694, 15183), (2169, 11858), (2178, 11809), (2541, 10122), (2651, 9702), (3234, 7953), (3374, 7623), (4338, 5929), (4851, 5302), (5061, 5082)]